Finding the Fourth Proportional to 257,380.12, 385,544.58 and 132,458.68
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Solution
The fourth proportional to 257,380.12, 385,544.58 and 132,458.68 is: 198,417.52
Step by Step Solution
- Step 1: Write the proportion equation
257,380.12 : 385,544.58 = 132,458.68 : x - Step 2: Convert to fraction form
257,380.12/385,544.58 = 132,458.68/x - Step 3: Cross multiply
257,380.12x = 385,544.58 × 132,458.68 - Step 4: Simplify right side
257,380.12x = 51,068,726,147.95 - Step 5: Solve for x
x = 51,068,726,147.95/257,380.12 - Step 6: Final answer
x = 198,417.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.